Jetty and method of making the same



F 5- I o. A. BARTHOLOMEW 2,385,601

JETTY AND ME'fHOD OF MAKING THE SAME Filed April 28, 1945 Patented Sept. 25, 1945 umrso STATES amour OFFICE.

. 2,385,601 JETTY AND METHOD OF MAKING THE SAME Orlo A. Bartholomew, Atlantic City, N. J.

Application April 28, 1945, Serial No. 590,901

Claims.

My invention relates to a new and novel'constru'ction in jetties and method of making the same, and more particularly to a jetty that may be used as a temporary structure, that is, one that is readily removable if so desired or may be later filled with rock and used as a permanent structure.

As is well known to those skilled in the art, it is not always possible to foresee just what effect a jetty will have along a beach or the adjacent shore line, as although it may cause the beach to fill near or in close proximity to the jetty, adverse currents may also be set up to cause ero sion of the shore at some distance from the jetty.

This is especially so along the Atlantic sea coast and if a permanent-jetty is installed, which is generally built out of rockand at great expense,

it may set up certain currents to cause serious erosion further down the beach, and after a solid rock jetty is once built, it can also only be removed at a relatively great cost.

One of the objects of the present invention, therefore, is to build a jetty that may be of any desired height and may extend seaward for the desired number of feet, to be used particularly as a temporary construction, in that wooden box or trough-like sections are employed that are to be filled with sand and sunk slightly below ground level, these box or trough like sections also being arranged in tiers so that it is possible to have any height jetty desired.

The jetty then may be tried out for a desirable length of time so that the same willbe subjected to the fall and winter storms as well as the ordinary tides and should it be found that adverse paralleling shore currents are set up beyond the jetty, causing erosion of the beaches or shoreline, at some distance beyond the jetty, it is a relatively simple matter to draw the sand from the box or trough-like sections so that they can in turn be quickly floated and removed.

On the other hand, should it be found that the jetty causes an accretion or building up of the beach, or in other words, serves the desired purposes, then the box-like sections may have rocks added to the same, or if the box-like sections have completely filled with sand, some of the sand may be withdrawn and rocks added or substituted so that now the jetty becomes a permanent structure.

Still another object of the invention is to provide a jetty especially adapted for sea coast installation which may be of a temporary or permanent nature as above set out, and which consists broadly in driving two rows of piles seas (c1. (an-4) ward, while between these rows of pilings will be floated box-like sections, the bottom row of sections being provided with V shaped bottoms and weighted With sand causing them to sink into place. The upper row of sections or tierswill be bottomless so that sand or rock may first pass through the same and then fill them also.

Still another object of the invention is to provide a jetty wherein these various linearly arranged sections Will have linearly extending wings or overlapping portions to prevent the sand and water from rushing between the adjacent ends of the said sections.

With these and other objects in view the invention consists in certain new and novel con-.

structions and combination of parts as will be hereinafter more fully described and pointed out in the'claims. 1

Referring now to .the drawing showing the preferred construction and method of making same:

Fig. 1 is a sideelevation of a jetty showing fragmentary portions of two bottom and two top sections in place;

Fig. 2 is a top plan view;

Fig. 3 is a vertical section taken on line 33 of Fig. 1;

Fig. 4 is a transverse sectional view of an upper section; and

Fig. 5 is a perspective of one end of a lower section showing the protruding ends for overlapping purposes.

Referring now more particularly to Figures 1 and 2, there may be seen two rows of piling, l and 2, which rows extend parallel to each other,

the transverse spacing being such that the sec- .tions to be hereinafter referred to may be conveniently placed between them.

In Fig. 1 ther may be seen a ground line and also the mean low water line. Of course, when the lower sections are first put in place, they will not be to the depth as shown in Figs. 1 or 3, but in timethey will settle .to such a position, or in other words, they will tend to partly bury themselves in the sand.

Of course, when the piling is being placed in position, which is done by pumping water through a hose and a restricted nozzle at a great force down in the sand, the sand between the rows of pilings may also be forced out to form a sort of a trench for these bottom sections. In other words, the bottom row of sections about to be described should be sunk between the pilings at a low enough level so that the Water and sand will not 66 flow beneath the sections, but on the other hand;

, desirable.

will build up the sand against the sections and also flow over into the sections.

Referring for the moment to Fig. 2, there may be seen two top sections T, the adjacent ends of which are interfitted.

Referring now to Fig, 3, there will be seen the row of pilings l the rowof pilings 2, and a crosssection of one of the trough-like bottom sections B, as well as the upper section T which will be shortly referred to.

Each bottom section B consists of the two side frames 5 and the bottom 5 which preferably extends downwardly and inwardly to form the pointed or V shaped construction. This bottom f construction of the section B permits the same,

after it has been placed in position and partly As also may be seen in Fig; 5, there is the end wall So for each section B, while extending the height of the side walls 5 may be seen the wings II that are nailed or bolted into place. These wings will only be on one end of each section B so that when the sections are floated out between the piling and then filled with sand and lowered, the wings I l-of one will extend over the adjacent end ofthe preceding section.

These wings I I prevent the water from flowing through the space between the adjacent sections so that the sand will build up against the sections as a solid wall.

It will also be noticed that the bracing, that is,

' the upright 1, and cross-bars, etc., extend in a plane above that of the side walls 5 to form an interlo'cking means with an upper tier of sections that will now be described.

As may be seen in Figs. 1, 3, and 4, there are provided similar top sections T and these sections have bracing frames I3 built therein to extend from about half the depth of the side walls 29' upwardl above the level of the side walls in the same manner, that the frames extend above the side walls in sections B, so that still a third tier might be interlocked with the second tier if the water is very deep.

These bracing frames in both the B and T sections,'as;may be seen in Fig. 3, arearranged to be in vertical alignmentto thus rigidly brace the lower sections and the upper tier sections. Also, by having 'thesebracing frames extend above the level of the side walls, there is an interlocking arrangement between the upper and lower sections. sand either by the action of thetides or they may i be filled with sand when the jetty is being constructed.

Also, as may be seen in Fig. 2, the top sections T have the similar extending wings 25 so that the space between the adjacent ends of the sections will be sealed against the Water and sand flowing between them As far as the specification has proceeded, it

will be seen that the jetty is formed ofa plurality of over-lapping sections B that are placed endto end as far out into the water as found After they have been located, a tier of upper sections T thatare bottomless will be interfitted to reach the desired height, or in other Words, the solid Wall, and Hit is necessary to add still an upper tier or other upper tiers, this may be conveniently done.

After the jetty has been thus constructed, the sand especially during storms will tend to wash against the jetty and tend to fill up all of the sections so that the strength of the Wall is not just dependent upon the wooden sections, they, in reality, just forming a barrier in which and against which the sand will pile up.

After the jetty is subjected to the action of the waves and currents and high seas, and it is found that the beach tends to build up in close proximity to the jetty and that no adverse currents are set up further down the coast line, and it is desired to make the jetty a more permanent structure, any desired amount of sand may be Afterwards all sections will be filled with pumped out of the upper sections and a truck or car with rock ballast (not shown) may be run out on a track 21. Thus, the lower sections and the upper tiers may be conveniently filled with rock or any other heavy ballast so that the jetty will now be of a permanent construction. Even after the pilings or sections wear away, the heavy rocks will stay in place, s

From the foregoing, it will be seen that the desired length of the jetty will decide the number of sections to be used and should it be thought under some conditions that the jetty would be of more value if it were a little longer or a little shorter, sections may be added or in the opposite manner, sections may be removed.

Finally, it is a simple matter to add additional tiers depending on the mean depth of the water. Many slight changes may be made without in any way departing from the spirit or scope of the invention.

Having thus described the same what I claim is new and desire to secure by Letters Patent is:

l. A method of constructing a jetty which consists in sinking parallel rows of piling, floating.

interlocking box-like sections and sinking the same between the rows of piling by partially fillin them with said and then floating out bottomless interlocking sections to form an upper tier and forcing them down between the pilin'gs to interlock with the lower sections.

2. A method of constructing a jetty which consists in sinking parallel rows of piling, floating interlocking box-like sections and sinking the same between the rows of piling by partially filling them with sand and then floating out botto-mless interlocking sections to form an upper tierandiorcing them down between the pilings to also interlockwith the lower sections, and

then filling the upper and lower sections with sand.

3. A method of constructing a jetty which consists in sinking parallel rows of piling, floating interlocking box-like sections and sinking the same between the rows of piling by partially filling them with sand and then floating out bottomand a further tier of bottomless sections disposed on said lower sections and interlocked therewith,

disposed throughout their length and said brac- 10 ing frames extending from substantially midway of the height of the side walls and upwardly above the level of the side walls and adapted to interlock with additional upper sections, rows of pilings on the opposite sides of said sections to hold the sections in place and said sections filled with ballast to thereby hold the sections'in their set position.

ORLO A. BARTHOLOMEW. 

